Voice of experience here: A band-aid is NOT sufficient to protect a blister from getting worse unless you ALSO remove whatever was rubbing there.
My friend the podiatrist, who is also a dancer, brings to dance camps various thicknesses of felt which he shapes carefully to a foot and its shoe so as to prevent the hot spot (proto-blister) from being touched by the shoe.
Voice of experience here: A band-aid is NOT sufficient to protect a blister from getting worse unless you ALSO remove whatever was rubbing there.
My friend the podiatrist, who is also a dancer, brings to dance camps various thicknesses of felt which he shapes carefully to a foot and its shoe so as to prevent the hot spot (proto-blister) from being touched by the shoe.